diff options
Diffstat (limited to 'libc/sysdeps/x86_64/multiarch/strcmp.S')
| -rw-r--r-- | libc/sysdeps/x86_64/multiarch/strcmp.S | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/libc/sysdeps/x86_64/multiarch/strcmp.S b/libc/sysdeps/x86_64/multiarch/strcmp.S index f69aaf42b..1d4d71183 100644 --- a/libc/sysdeps/x86_64/multiarch/strcmp.S +++ b/libc/sysdeps/x86_64/multiarch/strcmp.S @@ -88,14 +88,16 @@ ENTRY(STRCMP) jne 1f call __init_cpu_features 1: + testl $bit_Slow_SSE4_2, __cpu_features+CPUID_OFFSET+index_Slow_SSE4_2(%rip) + jnz 2f leaq STRCMP_SSE42(%rip), %rax testl $bit_SSE4_2, __cpu_features+CPUID_OFFSET+index_SSE4_2(%rip) - jnz 2f - leaq STRCMP_SSSE3(%rip), %rax + jnz 3f +2: leaq STRCMP_SSSE3(%rip), %rax testl $bit_SSSE3, __cpu_features+CPUID_OFFSET+index_SSSE3(%rip) - jnz 2f + jnz 3f leaq STRCMP_SSE2(%rip), %rax -2: ret +3: ret END(STRCMP) # ifdef USE_AS_STRCASECMP_L @@ -109,16 +111,18 @@ ENTRY(__strcasecmp) # ifdef HAVE_AVX_SUPPORT leaq __strcasecmp_avx(%rip), %rax testl $bit_AVX_Usable, __cpu_features+FEATURE_OFFSET+index_AVX_Usable(%rip) - jnz 2f + jnz 3f # endif + testl $bit_Slow_SSE4_2, __cpu_features+CPUID_OFFSET+index_Slow_SSE4_2(%rip) + jnz 2f leaq __strcasecmp_sse42(%rip), %rax testl $bit_SSE4_2, __cpu_features+CPUID_OFFSET+index_SSE4_2(%rip) - jnz 2f - leaq __strcasecmp_ssse3(%rip), %rax + jnz 3f +2: leaq __strcasecmp_ssse3(%rip), %rax testl $bit_SSSE3, __cpu_features+CPUID_OFFSET+index_SSSE3(%rip) - jnz 2f + jnz 3f leaq __strcasecmp_sse2(%rip), %rax -2: ret +3: ret END(__strcasecmp) weak_alias (__strcasecmp, strcasecmp) # endif @@ -133,16 +137,18 @@ ENTRY(__strncasecmp) # ifdef HAVE_AVX_SUPPORT leaq __strncasecmp_avx(%rip), %rax testl $bit_AVX_Usable, __cpu_features+FEATURE_OFFSET+index_AVX_Usable(%rip) - jnz 2f + jnz 3f # endif + testl $bit_Slow_SSE4_2, __cpu_features+CPUID_OFFSET+index_Slow_SSE4_2(%rip) + jnz 2f leaq __strncasecmp_sse42(%rip), %rax testl $bit_SSE4_2, __cpu_features+CPUID_OFFSET+index_SSE4_2(%rip) - jnz 2f - leaq __strncasecmp_ssse3(%rip), %rax + jnz 3f +2: leaq __strncasecmp_ssse3(%rip), %rax testl $bit_SSSE3, __cpu_features+CPUID_OFFSET+index_SSSE3(%rip) - jnz 2f + jnz 3f leaq __strncasecmp_sse2(%rip), %rax -2: ret +3: ret END(__strncasecmp) weak_alias (__strncasecmp, strncasecmp) # endif |